<template>
  <div id="userAvatar">
    <el-dialog
      :title="title"
      v-model="open"
      width="800px"
      append-to-body
      @opened="modalOpened"
      @close="closeDialog"
    >
      <el-row>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <vue-cropper
            ref="cropper"
            :img="options.img"
            :info="true"
            :autoCrop="options.autoCrop"
            :autoCropWidth="options.autoCropWidth"
            :autoCropHeight="options.autoCropHeight"
            :fixedBox="options.fixedBox"
            :outputType="options.outputType"
            @realTime="realTime"
            v-if="visible"
          />
        </el-col>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="options.previews.url" :style="options.previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <!-- :http-request="requestUpload" -->

          <el-upload
            ref="uploadRef"
            :show-file-list="false"
            :on-success="handleUploadSuccess"
            :action="uploadImgUrl"
            name="image"
            :auto-upload="false"
            :on-change="onChange"
          >
            <el-button>
              选择
              <el-icon class="el-icon--right"><Upload /></el-icon>
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="Plus" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="Minus" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button type="primary" @click="uploadImg()">保 存</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script setup>
import 'vue-cropper/dist/index.css';
import { VueCropper } from 'vue-cropper';
import { ref, reactive, getCurrentInstance } from 'vue';
import { useStore } from 'vuex';
import avatar from '@/assets/images/default-avatar.png';
const store = useStore();
const userInfo = ref(store.getters.user.userInfo);

const { proxy } = getCurrentInstance();
const emits = defineEmits(['handleUpdateAvatar', 'handleAvatarSubmit']);
const uploadRef = ref(null);
const open = ref(false);
const visible = ref(false);
const title = ref('修改头像');
const url = 'https://mcdn.chatgk.com';

const uploadImgUrl = ref('/api/index/imageUpload', 'handleAvatarSubmit'); // 上传的图片服务器地址
//图片裁剪数据
const options = reactive({
  img: url + userInfo.value.head || avatar, // 裁剪图片的地址
  autoCrop: true, // 是否默认生成截图框
  autoCropWidth: 200, // 默认生成截图框宽度
  autoCropHeight: 200, // 默认生成截图框高度
  fixedBox: true, // 固定截图框大小 不允许改变
  outputType: 'png', // 默认生成截图为PNG格式
  filename: 'avatar', // 文件名称
  previews: {}, //预览数据
});
/** 上传预处理 */
const fileName = ref('');
const onChange = (res, file) => {
  fileName.value = file.name;
  if (res.raw.type.indexOf('image/') == -1) {
    proxy.$modal.msgError(
      '文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。',
    );
  } else {
    const reader = new FileReader();
    reader.readAsDataURL(res.raw);
    reader.onload = () => {
      options.img = reader.result;
      options.filename = file.name;
    };
  }
};
const handleUploadSuccess = (res) => {
  if (res.code == 20000) {
    store.dispatch('user/changeUserAvatar', res.data.url);
    emits('handleAvatarSubmit', res.data.url);
  }
};
const handleChangeUpload = () => {
  if (uploadRef.value) {
    uploadRef.value.submit();
  }
};
/** 关闭窗口 */
function closeDialog() {
  //   options.img = userStore.avatar;
  options.visible = false;
}
/** 实时预览 */
function realTime(data) {
  options.previews = data;
}

/** 打开弹出层结束时的回调 */
function modalOpened() {
  visible.value = true;
}
/** 向左旋转 */
function rotateLeft() {
  proxy.$refs.cropper.rotateLeft();
}
/** 向右旋转 */
function rotateRight() {
  proxy.$refs.cropper.rotateRight();
}
/** 图片缩放 */
function changeScale(num) {
  num = num || 1;
  proxy.$refs.cropper.changeScale(num);
}
/** 提交 */
function uploadImg() {
  emits('handleUpdateAvatar', options.previews.url);
  open.value = false;
}
const handleOpenUpdateMask = () => {
  open.value = true;
};
defineExpose({
  handleOpenUpdateMask,
  handleChangeUpload,
});
</script>

<style lang="scss" scoped>
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.avatar-upload-preview {
  position: absolute;
  top: 50%;
  transform: translate(50%, -50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  box-shadow: 0 0 4px #ccc;
  overflow: hidden;
}
</style>
